diff --git a/requirements.txt b/requirements.txt
index 332bb79..eff4736 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 argparse==1.2.1
 Jinja2==2.10.1
 python-dateutil==2.2
-PyYAML==4.2b1
+PyYAML==5.4
 OCCO-InfoBroker==0.2.0
 OCCO-Util==0.2.0